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The U.S. Consumer Price Index rose 0.6% in September, up from 0.4% in August, according to the Bureau of Labor Statistics. Gasoline prices increased 9.1% and accounted for more than half of the monthly rise; the CPI was 3.7% higher than a year earlier.
The U.S. Consumer Price Index (CPI) rose 0.6% in September on a seasonally adjusted basis, accelerating from a 0.4% increase in August, as gasoline prices climbed sharply, according to the Bureau of Labor Statistics. The all-items index was 3.7% higher than a year earlier, putting renewed pressure on household budgets through fuel and other costs.
The BLS said the gasoline index rose 9.1% in September and accounted for more than half of the monthly increase in the all-items CPI. The broader energy index increased 5.2%, following a 2.1% rise in August. Those figures identify energy as the main driver of the faster monthly inflation reading; they do not establish how long the increases will last.
Outside food and energy, the CPI rose 0.3% in September, matching its August increase. The shelter index increased 0.4%, compared with 0.3% the month before. The report also recorded increases in recreation, used cars and trucks, education, airline fares, medical care and apparel. Communication was among the small number of major indexes to fall.
The monthly CPI change is seasonally adjusted, while the reported 3.7% year-over-year increase is not seasonally adjusted. These measures describe different comparison periods: September against August, and the September index against the same month a year earlier. The source report does not provide detailed price changes for every listed category or figures for food inflation.
Fuel Costs Lead the Monthly Increase
Gasoline’s outsized contribution means the September acceleration was concentrated heavily in a cost that many households encounter directly and frequently. A 9.1% monthly increase in gasoline can raise commuting and travel expenses, while higher energy costs may also affect businesses’ operating and transportation bills. The CPI report records price changes, but by itself it does not measure the impact on any particular household or company.
The underlying pattern was more mixed than the headline suggests. Prices excluding food and energy rose at the same monthly rate as in August, while shelter continued to increase and several other categories also recorded gains. For consumers, that means the pressure was not limited to fuel, even though energy supplied the largest share of September’s overall monthly rise.
The data matter to policymakers and markets because inflation readings help shape assessments of price trends and the economy. However, one month’s report cannot show whether gasoline’s surge will persist or whether broader inflation will pick up. The difference between the 0.6% monthly rise and the 3.7% annual rise also makes it important to track both short-term movement and the longer comparison.
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September Followed an August Increase
The latest figures show a faster monthly increase than in August, when the CPI rose 0.4%. The energy index also accelerated, moving from a 2.1% increase in August to 5.2% in September. Gasoline’s September increase was the largest specific driver identified in the report, contributing more than half of the all-items monthly gain.
The BLS figures are the official U.S. inflation measure cited in the source report. They track changes in a basket of consumer goods and services. The September release shows both broad movements and category-level differences: shelter rose, several service and goods categories increased, and communication declined. That mix helps explain why the headline can move more sharply than the measure excluding food and energy, which held steady at 0.3% monthly growth.
The source report, published by Hardware Retailing on October 14, 2026, attributes the underlying CPI figures to the BLS. The available material gives the main index changes but does not include additional detail about the causes of gasoline’s rise or a breakdown by region.
“The Consumer Price Index increased 0.6% on a seasonally adjusted basis in September after rising 0.4% in August.”
— U.S. Bureau of Labor Statistics, as reported by Hardware Retailing
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How Long Energy Gains Will Last
The figures confirm that gasoline and overall energy prices rose sharply in September, but the report summary does not explain what drove the increase or indicate whether it will continue. It is also not clear from the provided material how price changes varied by region or how much different households experienced, since spending patterns differ.
The September data alone cannot establish a lasting change in the inflation trend. Core CPI growth remained at 0.3% for a second month, but that single measure does not capture all household costs. The source material also does not state how the September report may affect interest-rate decisions, market expectations or future inflation forecasts.
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Watch the Next CPI Release
The next CPI report will show whether the September pattern continued, particularly whether gasoline and the broader energy index kept rising or eased. Readers can also compare changes in shelter and the index excluding food and energy with the latest figures: 0.4% and 0.3% monthly, respectively, in September.
Until newer data are released, September’s numbers remain the latest figures in the source material. Any assessment of a sustained inflation trend will require subsequent monthly readings, rather than treating the gasoline-driven increase as proof of what comes next.
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Key Questions
How much did U.S. consumer prices rise in September?
The seasonally adjusted CPI rose 0.6% from August to September, after rising 0.4% the previous month, according to the BLS.
What drove the September increase?
Gasoline prices rose 9.1% during September and accounted for more than half of the monthly increase in the all-items index. The broader energy index increased 5.2%.
How much higher were prices than a year earlier?
The all-items CPI was 3.7% higher over the 12 months through September, before seasonal adjustment.
Did inflation excluding food and energy accelerate?
No. The index for all items less food and energy rose 0.3% in September, the same monthly rate reported for August.
Does the report show whether energy prices will keep rising?
No. The September figures report what happened during that month, but the source material does not say whether the energy increase will persist. Later CPI releases will provide additional evidence.
Source: rss
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